p{
    margin: 0;
    padding: 0;
}

body{
    margin: 0;
    padding: 0;
}
*{
    box-sizing: border-box;
}
.content{
    background-color: black;
    width: 100vw;
    height: 100vh;
    color: white;
    background-image: url('../static/背景.png');
    background-position: center;
    background-repeat: no-repeat;

    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

._content{
    width: 100vw;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.bodyContent {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    color: white;
    z-index: 0;
}

.bodyContent::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../static/背景.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: -2; /* 比 ::after 更底层 */
}

.bodyContent::after {
    content: '';
    position: fixed; /* 也是 fixed */
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    backdrop-filter: blur(5px);
    z-index: -1;
}

.direction_row{
    display: flex;
    flex-direction: row;
}

.flexColumn{
    display: flex;
    flex-direction: column;
    align-items: center;
}

.flexRow{
    display: flex;
    flex-direction: row;
    align-items: center;
}
